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Sharp SM-SX1 Service Manual page 17

1-bit amplifier
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TROLL
44 43 42 41 40 39 38
37 36
1
DI
2
DI
3
BCKI
4
BCKI
IC801
5
LRCI
SM5844AF
6
ICLK
SAMPLING RATE
ICKSL
7
NC
8
CONVERTER
IFM1
NC
9
IFM1
10
IFM2
11
IFM2
C833
12
13
14
15
16
18
19
20
17
0.1
C834
47/10
L808
IC802:INVERTER
VDD
8
1
2
7
3
6
4
5
GND
IC802
TC7W04F
14
13
1
2
L–
L810
CK
10 9 8
14 13 12 11 10
3 11
4
1
3
5
6
7
R+
C809:WAVEFORM
RECTIFICATION
7
35 34
33
VSS
32
VSS
D800
RSTN
31
DAN202K
RSTN
30
R845
TST2N
29
NC
10k
NC
TST1N
28
STATE
27
NC
C840
4.7/25
26
IISN
IISN
25
OW20N
24
OW20N
23
21
22
R827
L806
1k
C830
0.1
R839
L+
1K
12
11 10
9 8
C841
2.2
C842
2.2
3
4
5
6
7
R838
1K
C843
2.2
R–
C844
2.2
9 8
2
3
6
4
5
7
8
Figure 17 SCHEMATIC DIAGRAM (4/10)
DIGITAL PWB-A2
R861
15K
D802
DAN202K
4
NC
3
2
7
NC
8
9
R853
4.7K
RLY802
R854
100K
D803
DAN202K
4
3
2
NC
L+
R856
7
18K
8
9
L–
R857
NC
18K
RLY801
R848
47K
4
3
2
NC
R–
R858
7
18K
8
9
NC
R+
R859
18K
RLY800
R851
1K
R850
R852
4.7K
100K
9
10
– 17 –
SM-SX1/SX1W
BI801
CNS102
64fs
6
5
TP10
GND
5
4
R860
15K
CNP102
TO INPUT
SACD R
4
3
SOURCE PWB
TP6
GND
P20 5-G
3
2
GND
2
TP9
SACD L
1
1
TP8
CNP801
TP11
+24V
16
TP12
Protect
15
TP13
Protect +B
14
TP14
GND( µ-COM)
13
TP15
Dig/Ana RLY
12
TP16
12V(RLY)
11
TP17
5V(D)
10
TP18
DR+
9
TP19
CNS801
DR–
8
TP20
GND(D)
7
MAIN PWB
GND(D)
6
P14 1-F
DL–
5
TP22
DL+
4
TP23
A.GND
3
TP24
2
A–10V
TP25
1
A+10V
TP26
CNP800
1
A+10V
TP27
2
A-10V
TP28
A-L-ch
3
TP29
A.GND
4
A.GND
5
A-R-ch
6
TP31
Protect +B
7
8
12V(RLY)
TP33
9
5V(D)
TP34
INPUT SOURCE PWB
GND(D)
10
TP35
DDIN
11
TP36
Protect
12
+24V
13
TP38
11
FROM
CNS800
FROM
P20 4-G
12

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